Most Important MCQs of SCIENCE PART I for SSC Board Examination

Select the correct option and write only the alphabet corresponding to the correct option :

…………. light is deviated the maximum in the spectrum of white light obtained with a glass prism.

(A) Red
(B) Yellow
(C) Violet
(D) Blue

Select the correct option and write only the alphabet corresponding to the correct option :

The law of octave was given by ………..

(A) Dobereiner          (B) Newlands           (C) Mendeleev           (D) Moseley

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A ray of light strikes a glass slab at an angle of 50° with the normal to the surface of the slab. What is the angle of incidence ?

(A) 50°
(B) 25°
(C) 40°
(d) 100°

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Which of the statements given below correctly describes the magnetic field near a long, straight current carrying conductor ?

(A)The magnetic lines of force are in a plane, perpendicular to the conductor in the form of straight .
(B) The magnetic lines of force are parallel to the conductor on all the sides of conductor.
(C) The magnetic lines of force are perpendicular to the conductor going radially outward.
(D) The magnetic lines of force are in concentric circles with the wire as the centre, in a plane perpendicular to the conductor.

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A glass slab is placed in the path of convergent light. The point of convergence of light:

(A) moves away from the slab
(B) moves towards the slab
(C) remains at the same point
(D) undergoes a lateral shift

Select the correct option and write only the alphabet corresponding to the correct option :

Carbon dioxide ……….

(A) turns lime water milky           (B) is odourless         

(C) is colourless                              (D) All the three (A), (B) and (C) are correct

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When steam condenses to form water ………..

(A) heat is absorbed and temperature increases
(B) heat is absorbed and temperature remains the same
(C) heat is given out and temperature decreases
(D) heat is given out and temperature remains the same

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Eka-boroon was subsequently named as ……….

(A) gallium          (B) germanium            (C) scandium           (D) molybdenum

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Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ……….

(A) Group 2           (B) Group 16           (C) Period 2           (D) d-block

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